76% (2009)

78% (2018)

84% (1994)

77% (2014)

63% (1996)

60% (1962)

65% (2013)

71% (2017)

0% (1961)

71% (2003)

0% (2009)

0% (1970)

62% (2005)

74% (2018)

72% (1996)

74% (2000)

69% (2004)

62% (2015)

70% (2000)

78% (2006)